bitcoinjs-lib/test/bufferutils.js

137 lines
3.6 KiB
JavaScript

var assert = require('assert')
var bufferutils = require('../src/bufferutils')
var fixtures = require('./fixtures/buffer.json')
describe('bufferutils', function() {
describe('pushDataSize', function() {
fixtures.valid.forEach(function(f) {
it('determines the pushDataSize of ' + f.dec + ' correctly', function() {
if (!f.hexPD) return
var size = bufferutils.pushDataSize(f.dec)
assert.equal(size, f.hexPD.length / 2)
})
})
})
describe('readPushDataInt', function() {
fixtures.valid.forEach(function(f) {
if (!f.hexPD) return
it('decodes ' + f.hexPD + ' correctly', function() {
var buffer = new Buffer(f.hexPD, 'hex')
var d = bufferutils.readPushDataInt(buffer, 0)
assert.equal(d.number, f.dec)
assert.equal(d.size, buffer.length)
})
})
})
describe('readUInt64LE', function() {
fixtures.valid.forEach(function(f) {
it('decodes ' + f.hex64 + ' correctly', function() {
var buffer = new Buffer(f.hex64, 'hex')
var number = bufferutils.readUInt64LE(buffer, 0)
assert.equal(number, f.dec)
})
})
})
describe('readVarInt', function() {
fixtures.valid.forEach(function(f) {
it('decodes ' + f.hexVI + ' correctly', function() {
var buffer = new Buffer(f.hexVI, 'hex')
var d = bufferutils.readVarInt(buffer, 0)
assert.equal(d.number, f.dec)
assert.equal(d.size, buffer.length)
})
})
})
describe('varIntSize', function() {
fixtures.valid.forEach(function(f) {
it('determines the varIntSize of ' + f.dec + ' correctly', function() {
var size = bufferutils.varIntSize(f.dec)
assert.equal(size, f.hexVI.length / 2)
})
})
})
describe('writePushDataInt', function() {
fixtures.valid.forEach(function(f, i) {
if (!f.hexPD) return
it('encodes ' + f.dec + ' correctly', function() {
var buffer = new Buffer(5)
buffer.fill(0)
var n = bufferutils.writePushDataInt(buffer, f.dec, 0)
assert.equal(buffer.slice(0, n).toString('hex'), f.hexPD)
})
})
fixtures.invalid.forEach(function(f) {
it('throws on ' + f.description, function() {
var buffer = new Buffer(5)
buffer.fill(0)
assert.throws(function() {
bufferutils.writePushDataInt(buffer, f.dec, 0)
}, /value must be < 2\^53/)
})
})
})
describe('writeUInt64LE', function() {
fixtures.valid.forEach(function(f) {
it('encodes ' + f.dec + ' correctly', function() {
var buffer = new Buffer(8)
buffer.fill(0)
bufferutils.writeUInt64LE(buffer, f.dec, 0)
assert.equal(buffer.toString('hex'), f.hex64)
})
})
fixtures.invalid.forEach(function(f) {
it('throws on ' + f.description, function() {
var buffer = new Buffer(8)
buffer.fill(0)
assert.throws(function() {
bufferutils.writeUInt64LE(buffer, f.dec, 0)
}, /value must be < 2\^53/)
})
})
})
describe('writeVarInt', function() {
fixtures.valid.forEach(function(f) {
it('encodes ' + f.dec + ' correctly', function() {
var buffer = new Buffer(9)
buffer.fill(0)
var n = bufferutils.writeVarInt(buffer, f.dec, 0)
assert.equal(buffer.slice(0, n).toString('hex'), f.hexVI)
})
})
fixtures.invalid.forEach(function(f) {
it('throws on ' + f.description, function() {
var buffer = new Buffer(9)
buffer.fill(0)
assert.throws(function() {
bufferutils.writeVarInt(buffer, f.dec, 0)
}, /value must be < 2\^53/)
})
})
})
})